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Modeling laser source with his own k_abs (optical absorption coefficient)
Posted 2010年2月8日 GMT-5 07:53 0 Replies
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I'm preparing a thesis about the simulation of a new photoacoustic generation system using the Comsol Multiphysics 3.5a software.
To model the laser source, I'm doing something similar to the "Heating with a moving laser" tutorial (Model Library path: COMSOL_Multiphysics/Heat_Transfer/laser_heating). In that case they model the absorption coefficient of a laser heating silica using the expression (it is function of temperature):
kabs=8e3 [m^-1] – 10 [(m·K)^-1]*(T-300[K])
Now, how can I do to do this with another material (I need aluminium and copper cases)? I mean, how did they manage to implement this expression??
(I should manage to create a similar expression using a laser with a wavelength of 1550 nm heating aluminium or copper)
Thank you very much and sorry if I wasn't clear.
Claudia
Hello Claudia Masselli
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